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en:obc:spell3 [2020/02/19 12:04] – michalskrabalen:obc:spell3 [2020/02/19 12:06] – michalskrabal
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 In the previous lessons, you have worked with individual specific words. Searching using tags allows you to look at the given phenomena as it occurs across whole classes of words. In the previous lessons, you have worked with individual specific words. Searching using tags allows you to look at the given phenomena as it occurs across whole classes of words.
  
-Let’s take a look at the contracted past tense and participle ending //‘d//. By examining the tagset, we can see that it distinguishes all different types of verbs; modal auxiliaries are tagged as VM, infinitive forms as VVI and so on. In the standard tagest, there is no specific tag for verbs in the forms we are looking for. The easiest way to find the past and past participle contracted forms would then be to search for all verbs that end in //‘d//. To do so, use [[https://wiki.korpus.cz/doku.php/en:pojmy:regularni_vyrazy|regular expressions]]; the sequence //.*// in particular. The full stop //.// represents any one character, while the asterisk //*// matches zero, one or more repetitions of the previous character. The sequence then represents any part of a word or a tag. We can see in the tagset that all verb tags begin with V and we can substitute the rest of the tag with the regular expression //.*// to match any verbal tag.+Let’s take a look at the contracted past tense and participle ending //‘d//. By examining the tagset, we can see that it distinguishes all different types of verbs; modal auxiliaries are tagged as VM, infinitive forms as VVI and so on. In the standard tagest, there is no specific tag for verbs in the forms we are looking for. The easiest way to find the past and past participle contracted forms would then be to search for all verbs that end in //‘d//. To do so, use [[https://wiki.korpus.cz/doku.php/en:pojmy:regularni_vyrazy|regular expressions]]; the sequence ''.*'' in particular. The full stop ''.'' represents any one character, while the asterisk ''*'' matches zero, one or more repetitions of the previous character. The sequence then represents any part of a word or a tag. We can see in the tagset that all verb tags begin with V and we can substitute the rest of the tag with the regular expression ''.*'' to match any verbal tag.
  
 Make sure the query type is set on CQL, you may also set the default attribute below the search window to //tag//, however it is not necessary. If you do so, the square brackets and the specified attribute can be left out in the query (i.e. you can type only ''"V.*"'' into the search box). You may start the query as such: Make sure the query type is set on CQL, you may also set the default attribute below the search window to //tag//, however it is not necessary. If you do so, the square brackets and the specified attribute can be left out in the query (i.e. you can type only ''"V.*"'' into the search box). You may start the query as such:
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 ''[tag="V.*"]'' ''[tag="V.*"]''
  
-This query alone would find all verbs in the corpus, but what we need is to limit the search to only the verbs which end with //‘d//. For this, you can make use of the ampersand symbol (//&//) which represents the function of AND. When you connect two or more attributes with //&//, the resultant concordance will include only those occurrences which fulfil all the conditions specified in the query. The second part of the query is the //word// attribute; to look for any word which ends with //‘d//, we can use another regular expression. This time, we want to use the symbol + instead of *, since + represents one or more repetitions of the previous character; this way we avoid the possibility of only //‘d// appearing in the concordance.+This query alone would find all verbs in the corpus, but what we need is to limit the search to only the verbs which end with //‘d//. For this, you can make use of the ampersand symbol (''&'') which represents the function of AND. When you connect two or more attributes with ''&'', the resultant concordance will include only those occurrences which fulfil all the conditions specified in the query. The second part of the query is the //word// attribute; to look for any word which ends with //‘d//, we can use another regular expression. This time, we want to use the symbol ''+'' instead of ''*'', since ''+'' represents one or more repetitions of the previous character; this way we avoid the possibility of only //‘d// appearing in the concordance.
  
 ''[tag="V.*" & word=".+'d"]'' ''[tag="V.*" & word=".+'d"]''

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